>Do you have statistics for packets on each interface in the port group?
When I had the VSWITCH setup I was looking closely into this. While not perfectly balanced due to our client distribution, there was reasonable traffic going on on all interfaces. And it was the processor power available. When cycles were taken away by our higher prioity SAP engines throughput immediately sufferred way below the 100 MB/s mark. >Physical switches have multiple load balancing algorithms to choose from. Exactly. Our Cisco VSS switch pair does, as is exhibited by the distribution I am currently seeing coming in on the dedicated OSA's. Nothing changed outside of the zSeries. The problem still exists on outgoing traffic due to the old bonding driver level in SLES10 SP2 that only allows layer2 hashing. The one outgoing OSA used is pegged at 80-90 percent utilization according to PTK. Pieter Harder Brabant Water N.V. Postbus 1068 5200 BC 's-Hertogenbosch http://www.brabantwater.nl Handelsregister: 16005077 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390